include: update uapi with BPF from 4.15-rc1
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Stephen Hemminger
parent
1e24e773f1
commit
d857a7fd4b
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@ -17,7 +17,7 @@
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#define BPF_ALU64 0x07 /* alu mode in double word width */
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/* ld/ldx fields */
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#define BPF_DW 0x18 /* double word */
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#define BPF_DW 0x18 /* double word (64-bit) */
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#define BPF_XADD 0xc0 /* exclusive add */
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/* alu/jmp fields */
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@ -642,6 +642,14 @@ union bpf_attr {
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* @optlen: length of optval in bytes
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* Return: 0 or negative error
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*
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* int bpf_sock_ops_cb_flags_set(bpf_sock_ops, flags)
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* Set callback flags for sock_ops
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* @bpf_sock_ops: pointer to bpf_sock_ops_kern struct
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* @flags: flags value
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* Return: 0 for no error
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* -EINVAL if there is no full tcp socket
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* bits in flags that are not supported by current kernel
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*
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* int bpf_skb_adjust_room(skb, len_diff, mode, flags)
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* Grow or shrink room in sk_buff.
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* @skb: pointer to skb
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@ -748,7 +756,8 @@ union bpf_attr {
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FN(perf_event_read_value), \
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FN(perf_prog_read_value), \
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FN(getsockopt), \
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FN(override_return),
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FN(override_return), \
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FN(sock_ops_cb_flags_set),
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/* integer value in 'imm' field of BPF_CALL instruction selects which helper
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* function eBPF program intends to call
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@ -938,6 +947,9 @@ struct bpf_map_info {
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__u32 max_entries;
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__u32 map_flags;
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char name[BPF_OBJ_NAME_LEN];
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__u32 ifindex;
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__u64 netns_dev;
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__u64 netns_ino;
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} __attribute__((aligned(8)));
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/* User bpf_sock_ops struct to access socket values and specify request ops
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@ -949,8 +961,9 @@ struct bpf_map_info {
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struct bpf_sock_ops {
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__u32 op;
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union {
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__u32 reply;
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__u32 replylong[4];
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__u32 args[4]; /* Optionally passed to bpf program */
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__u32 reply; /* Returned by bpf program */
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__u32 replylong[4]; /* Optionally returned by bpf prog */
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};
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__u32 family;
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__u32 remote_ip4; /* Stored in network byte order */
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@ -965,8 +978,39 @@ struct bpf_sock_ops {
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*/
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__u32 snd_cwnd;
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__u32 srtt_us; /* Averaged RTT << 3 in usecs */
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__u32 bpf_sock_ops_cb_flags; /* flags defined in uapi/linux/tcp.h */
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__u32 state;
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__u32 rtt_min;
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__u32 snd_ssthresh;
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__u32 rcv_nxt;
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__u32 snd_nxt;
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__u32 snd_una;
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__u32 mss_cache;
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__u32 ecn_flags;
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__u32 rate_delivered;
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__u32 rate_interval_us;
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__u32 packets_out;
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__u32 retrans_out;
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__u32 total_retrans;
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__u32 segs_in;
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__u32 data_segs_in;
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__u32 segs_out;
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__u32 data_segs_out;
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__u32 lost_out;
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__u32 sacked_out;
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__u32 sk_txhash;
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__u64 bytes_received;
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__u64 bytes_acked;
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};
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/* Definitions for bpf_sock_ops_cb_flags */
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#define BPF_SOCK_OPS_RTO_CB_FLAG (1<<0)
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#define BPF_SOCK_OPS_RETRANS_CB_FLAG (1<<1)
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#define BPF_SOCK_OPS_STATE_CB_FLAG (1<<2)
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#define BPF_SOCK_OPS_ALL_CB_FLAGS 0x7 /* Mask of all currently
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* supported cb flags
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*/
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/* List of known BPF sock_ops operators.
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* New entries can only be added at the end
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*/
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@ -1000,6 +1044,43 @@ enum {
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* a congestion threshold. RTTs above
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* this indicate congestion
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*/
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BPF_SOCK_OPS_RTO_CB, /* Called when an RTO has triggered.
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* Arg1: value of icsk_retransmits
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* Arg2: value of icsk_rto
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* Arg3: whether RTO has expired
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*/
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BPF_SOCK_OPS_RETRANS_CB, /* Called when skb is retransmitted.
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* Arg1: sequence number of 1st byte
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* Arg2: # segments
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* Arg3: return value of
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* tcp_transmit_skb (0 => success)
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*/
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BPF_SOCK_OPS_STATE_CB, /* Called when TCP changes state.
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* Arg1: old_state
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* Arg2: new_state
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*/
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};
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/* List of TCP states. There is a build check in net/ipv4/tcp.c to detect
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* changes between the TCP and BPF versions. Ideally this should never happen.
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* If it does, we need to add code to convert them before calling
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* the BPF sock_ops function.
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*/
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enum {
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BPF_TCP_ESTABLISHED = 1,
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BPF_TCP_SYN_SENT,
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BPF_TCP_SYN_RECV,
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BPF_TCP_FIN_WAIT1,
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BPF_TCP_FIN_WAIT2,
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BPF_TCP_TIME_WAIT,
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BPF_TCP_CLOSE,
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BPF_TCP_CLOSE_WAIT,
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BPF_TCP_LAST_ACK,
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BPF_TCP_LISTEN,
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BPF_TCP_CLOSING, /* Now a valid state */
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BPF_TCP_NEW_SYN_RECV,
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BPF_TCP_MAX_STATES /* Leave at the end! */
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};
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#define TCP_BPF_IW 1001 /* Set TCP initial congestion window */
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@ -15,9 +15,10 @@
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/* ld/ldx fields */
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#define BPF_SIZE(code) ((code) & 0x18)
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#define BPF_W 0x00
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#define BPF_H 0x08
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#define BPF_B 0x10
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#define BPF_W 0x00 /* 32-bit */
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#define BPF_H 0x08 /* 16-bit */
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#define BPF_B 0x10 /* 8-bit */
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/* eBPF BPF_DW 0x18 64-bit */
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#define BPF_MODE(code) ((code) & 0xe0)
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#define BPF_IMM 0x00
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#define BPF_ABS 0x20
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